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  Treatment of gingivitis   and periodontitis
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  Implant indexing
  Technological Advances
 
 
 Implant Indexing

At a consultative visit, take a preoperative full-mouth impression and bite registration. Send materials to the laboratory for fabrication of stone models. Record shade and provide to the surgeon for provisional crown order.

Pour models in die stone. Complete a diagnostic wax-up for cases with three or more adjacent units.
Create a surgical guide using a duplicate model fabricated from an impression of the diagnostic wax-up.

 

Immediately after implant placement, take a localized index using the Fixture Mount/Transfers or attach a transfer post. Apply heavy-bodied vinyl polysiloxane indexing material around the transfer post with enough coverage to ensure fixation. Material need not be applied all the way to the implant engaging end of the transfer. Leaving access to the screw holes apply additional indexing material to the occlusal and incisal surfaces of two teeth on each side of the implants. Minimal material is needed on the facial and lingual surfaces as marginal detail was captured in the original full-mouth impression.

Prior to retrofitting of the partially edentulous study model, make a matrix of the edentulous area using silicone laboratory putty.

Connect the Fixture Mount/Transfers or transfer posts to corresponding implant replicas. Bore a hole in the original, preoperative model to accommodate the replicas. Fit the index with assembled transfers and replicas over the corresponding teeth on the original model, ensuring passive fit of index. Backfill the model with stone to secure the replicas in place. Once the stone material has set remove transfers and index from the adjusted stone model.

Trim the stone model to allow for the production of a soft tissue model. Allow for at least 1mm of implant analog to protrude above the stone surface. Occlude the top of the implant analog with soft wax. Use the matrix of the patient’s edentulous soft tissue area made in step 7 to create the profile of the soft tissue material.

At this point you have an accurate model of the implant analogs, which can be used for fabrication of the implant prosthetic. (UCLA abutments, cemented or screw retained, custom abutments, prepping prefabricated abutments, etc...)

 
 
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